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Darrick J. Wong 4983ffd34f xfs: revert "xfs: fix rmap key and record comparison functions" 
[ Upstream commit eb8409071a ]

This reverts commit 6ff646b2ce.

Your maintainer committed a major braino in the rmap code by adding the
attr fork, bmbt, and unwritten extent usage bits into rmap record key
comparisons.  While XFS uses the usage bits *in the rmap records* for
cross-referencing metadata in xfs_scrub and xfs_repair, it only needs
the owner and offset information to distinguish between reverse mappings
of the same physical extent into the data fork of a file at multiple
offsets.  The other bits are not important for key comparisons for index
lookups, and never have been.

Eric Sandeen reports that this causes regressions in generic/299, so
undo this patch before it does more damage.

Reported-by: Eric Sandeen <sandeen@sandeen.net>
Fixes: 6ff646b2ce ("xfs: fix rmap key and record comparison functions")
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2020-11-24 13:29:18 +01:00
..
libxfs xfs: revert "xfs: fix rmap key and record comparison functions" 2020-11-24 13:29:18 +01:00
scrub xfs: strengthen rmap record flags checking 2020-11-24 13:29:18 +01:00
Kconfig
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Makefile xfs: move xfs_trans_inode.c to libxfs/ 2019-07-15 08:10:18 -07:00
kmem.c xfs: add kmem_alloc_io() 2019-08-26 17:43:15 -07:00
kmem.h xfs: add kmem_alloc_io() 2019-08-26 17:43:15 -07:00
mrlock.h
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xfs.h
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xfs_acl.c xfs: allocate xattr buffer on demand 2019-08-30 22:43:57 -07:00
xfs_acl.h
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xfs_aops.c for-linus-20190715 2019-07-15 21:20:52 -07:00
xfs_aops.h xfs: remove the unused xfs_count_page_state declaration 2019-06-30 09:05:17 -07:00
xfs_attr_inactive.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_attr_list.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_bio_io.c xfs: chain bios the right way around in xfs_rw_bdev 2019-07-10 10:04:16 -07:00
xfs_bmap_item.c xfs: remove unnecessary int returns from deferred bmap functions 2019-08-28 08:31:02 -07:00
xfs_bmap_item.h xfs: merge xfs_bud_init into xfs_trans_get_bud 2019-06-28 19:27:36 -07:00
xfs_bmap_util.c xfs: properly serialise fallocate against AIO+DIO 2020-10-01 13:17:14 +02:00
xfs_bmap_util.h
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xfs_buf.c xfs: reset buffer write failure state on successful completion 2020-06-22 09:31:03 +02:00
xfs_buf.h xfs: get allocation alignment from the buftarg 2019-08-26 17:43:14 -07:00
xfs_buf_item.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_buf_item.h
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xfs_dir2_readdir.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_discard.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_discard.h
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xfs_dquot.c xfs: fix duplicate verification from xfs_qm_dqflush() 2020-06-22 09:31:03 +02:00
xfs_dquot.h
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xfs_dquot_item.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_dquot_item.h
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xfs_error.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_error.h
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xfs_export.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_export.h
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xfs_extent_busy.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_extent_busy.h
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xfs_extfree_item.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_extfree_item.h
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xfs_file.c xfs: properly serialise fallocate against AIO+DIO 2020-10-01 13:17:14 +02:00
xfs_filestream.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_filestream.h
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xfs_fsmap.c xfs: fix deadlock and streamline xfs_getfsmap performance 2020-10-29 09:57:48 +01:00
xfs_fsmap.h xfs: fix deadlock and streamline xfs_getfsmap performance 2020-10-29 09:57:48 +01:00
xfs_fsops.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_fsops.h
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xfs_globals.c xfs: multithreaded iwalk implementation 2019-07-03 07:33:26 -07:00
xfs_health.c xfs: introduce new v5 bulkstat structure 2019-07-03 20:36:26 -07:00
xfs_icache.c xfs: Don't allow logging of XFS_ISTALE inodes 2020-09-03 11:26:44 +02:00
xfs_icache.h
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xfs_icreate_item.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_icreate_item.h
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xfs_inode.c xfs: Don't allow logging of XFS_ISTALE inodes 2020-09-03 11:26:44 +02:00
xfs_inode.h
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xfs_inode_item.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_inode_item.h
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xfs_ioctl.c xfs: flush for older, xfs specific ioctls 2020-11-10 12:37:34 +01:00
xfs_ioctl.h xfs: introduce v5 inode group structure 2019-07-03 20:36:27 -07:00
xfs_ioctl32.c xfs: clear kernel only flags in XFS_IOC_ATTRMULTI_BY_HANDLE 2020-03-05 16:43:51 +01:00
xfs_ioctl32.h xfs: remove various bulk request typedef usage 2019-07-03 20:36:25 -07:00
xfs_iomap.c xfs: trim IO to found COW extent limit 2020-10-07 08:01:24 +02:00
xfs_iomap.h
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xfs_iops.c xfs: flush new eof page on truncate to avoid post-eof corruption 2020-11-18 19:20:20 +01:00
xfs_iops.h
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xfs_itable.c xfs: remove all *_ITER_ABORT values 2019-08-29 21:22:41 -07:00
xfs_itable.h xfs: remove all *_ITER_ABORT values 2019-08-29 21:22:41 -07:00
xfs_iwalk.c xfs: remove all *_ITER_ABORT values 2019-08-29 21:22:41 -07:00
xfs_iwalk.h xfs: remove all *_ITER_CONTINUE values 2019-08-30 22:43:56 -07:00
xfs_linux.h
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xfs_log.c xfs: fix mount failure crash on invalid iclog memory access 2020-01-04 19:18:43 +01:00
xfs_log.h fs: xfs: xfs_log: Change return type from int to void 2019-07-03 08:21:58 -07:00
xfs_log_cil.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_log_priv.h fs: xfs: xfs_log: Change return type from int to void 2019-07-03 08:21:58 -07:00
xfs_log_recover.c xfs: assure zeroed memory buffers for certain kmem allocations 2019-10-06 15:39:06 -07:00
xfs_message.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_message.h
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xfs_mount.c xfs: return corresponding errcode if xfs_initialize_perag() fail 2020-11-24 13:29:18 +01:00
xfs_mount.h xfs: add kmem allocation trace points 2019-08-26 17:43:14 -07:00
xfs_mru_cache.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_mru_cache.h
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xfs_ondisk.h xfs: wire up the v5 inumbers ioctl 2019-07-03 20:36:28 -07:00
xfs_pnfs.c xfs: fix a missing unlock on error in xfs_fs_map_blocks 2020-11-18 19:20:27 +01:00
xfs_pnfs.h
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xfs_pwork.c xfs: poll waiting for quotacheck 2019-07-03 08:21:58 -07:00
xfs_pwork.h xfs: poll waiting for quotacheck 2019-07-03 08:21:58 -07:00
xfs_qm.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_qm.h
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xfs_qm_bhv.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_qm_syscalls.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_quota.h
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xfs_quotaops.c xfs: Sanity check flags of Q_XQUOTARM call 2020-01-26 10:00:59 +01:00
xfs_refcount_item.c xfs: remove unnecessary int returns from deferred refcount functions 2019-08-28 08:31:02 -07:00
xfs_refcount_item.h xfs: merge xfs_cud_init into xfs_trans_get_cud 2019-06-28 19:27:35 -07:00
xfs_reflink.c xfs: fix reflink quota reservation accounting error 2020-08-19 08:16:10 +02:00
xfs_reflink.h
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xfs_rmap_item.c fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. 2019-08-26 12:06:22 -07:00
xfs_rmap_item.h xfs: merge xfs_rud_init into xfs_trans_get_rud 2019-06-28 19:27:36 -07:00
xfs_rtalloc.c xfs: fix realtime bitmap/summary file truncation when growing rt volume 2020-11-05 11:43:14 +01:00
xfs_rtalloc.h
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xfs_stats.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_stats.h
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xfs_super.c y2038: add inode timestamp clamping 2019-09-19 09:42:37 -07:00
xfs_super.h
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xfs_symlink.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_symlink.h
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xfs_sysctl.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_sysctl.h xfs: multithreaded iwalk implementation 2019-07-03 07:33:26 -07:00
xfs_sysfs.c xfs: avoid unused to_mp() function warning 2019-09-24 09:40:19 -07:00
xfs_sysfs.h xfs: Fix UBSAN null-ptr-deref in xfs_sysfs_init 2020-08-26 10:40:58 +02:00
xfs_trace.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_trace.h xfs: add kmem_alloc_io() 2019-08-26 17:43:15 -07:00
xfs_trans.c xfs: prohibit fs freezing when using empty transactions 2020-10-01 13:17:49 +02:00
xfs_trans.h xfs: merge xfs_trans_bmap.c into xfs_bmap_item.c 2019-06-28 19:29:42 -07:00
xfs_trans_ail.c xfs: clear PF_MEMALLOC before exiting xfsaild thread 2020-05-02 08:48:54 +02:00
xfs_trans_buf.c xfs: remove unused header files 2019-06-28 19:30:43 -07:00
xfs_trans_dquot.c xfs: fix inode quota reservation checks 2020-08-26 10:40:55 +02:00
xfs_trans_priv.h
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xfs_xattr.c xfs: allocate xattr buffer on demand 2019-08-30 22:43:57 -07:00